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Acer PH112 Service Manual Download Page 16

Chapter 3

10

Machine Disassembly and Replacement

This section provides disassembly procedures for PH112 DLP Projector. Before you begin any
of these procedures, be sure to turn off the power, computer system, and other attached devices;
then disconnect the power cable from the electronically outlet. Moreover, when you disassemble
the projector, be sure to put the screws in a safe place and separate them according to grouping.

Tool Needed

Chapter 3

Item

PHOTO

Long Nose Nipper

Hex Sleeves 5mm

Screw Bit (+) : 107

Screw Bit (+) : 101

Screw Bit (+) : 102

Summary of Contents for PH112

Page 1: ...100 Recycled Paper Acer PH 112 Service Guide Service guide files and updates are available on the CSD web for more information please refer to http csd acer com tw ...

Page 2: ... to the contents here of and specifically disclaims any warranties of merchantability or fitness for any particular purpose Any Acer Incorporated software described in this manual is sold or licensed as is Should the programs prove defec tive following their purchase the buyer and not Acer Incorporated its distributor or its dealer assumes the entire cost of all necessary servicing repair and any ...

Page 3: ... c e h t o t d e t a l e r g n i n r a W m o r f t l u s e r t h g i m t a h t e g a m a d y n a o t u o y s t r e l A s n o i t c a c i f i c e p s g n i o d t o n r o g n i o d n o i t u a C e l b i s s o p d i o v a o t s e r u s a e m y r a n o i t u a c e r p s e v i G s m e l b o r p e r a w t f o s r o e r a w d r a h t n a t r o p m I e h t o t t n a v e l e r s n o i t c a c i f i c e p s...

Page 4: ...NOT be covered in this generic service guide In such cases please contact your regional offices or the responsible personnel channel to provide you with further technical details 2 Please note WHEN ORDERING FRU PARTS that you should check the most up to date information available on your regional web or channel If for whatever reason apart number change is made it will not be noted in the printed ...

Page 5: ... Top Cover 13 Disassemble Speaker Front Cover 14 Disassemble Front Fan 15 Disassemble Front IR Board IR Cover 16 Disassemble Video IO 17 Dissassemble Main Board 18 Disassemble Ballast Module Back IR 19 Disassemble Optical Engine 20 Disassemble Back Cover 21 Disassemble Back IR Cover AC Outlet 22 Disassemble Power Module 23 DisassembleMylar Ground Plate 24 Disassemble Heatsink DMD Board 25 Disassem...

Page 6: ...urceTroubleshooting 35 FunctionTest andAlignment 36 EquipmentNeeded 36 Test Condition 36 TestDisplay Modes and Patterns 37 Compatible Modes 37 Function TestDisplay Pattern 38 Chapter 5 Connector Information 40 Introduction 40 Main Board 40 Power Board 46 Ballast Board 48 Chapter 6 FRU FieldReplaceable Unit List 49 FRU List 50 ...

Page 7: ...l Compensation Light Tunnel Focal Length 20 2 24 2 mm Screen Size 27 324 inches Diagonal Throw Distance 1 2 12 Meter Compatibility Horizontal frequency 31 79KHz Vertical frequency 50 85Hz Operation Humidity 80 Operation Temperature 5 35C Sound Noise 30dB A standard mode 28db A ECO mode Power Requirement 100 240v 50 60Hz Dimensions W x H x D 256 x 198 x 92 mm Weight 2 3 KG 4 5 lb Certification CE C...

Page 8: ...ow 35V continued over 90s the driver shuts down If the lamp voltage reaches over 140V the driver shuts down immediately 2 2 Run up time Run up time to 80 of the stabilised luminous output is 60s 2 3 Ignition 2 3 1 Cold ignition The criterion for reliable ignition is defined as a maximum of three ignition failures on 30 attempts per amp however none of these ignition failures mayoccursubsequently D...

Page 9: ...ground e g via PE If possible keep the cables straightened having a mutual distance of 1 to 2 cm between the A suitable electrical enclosure should be provided in the end product Creepage and clearance distances to high voltage parts and traces have to be evaluated in the end product Special consideration has to be given to the distances from earthed mounting screws to hazardous voltage traces on ...

Page 10: ...ple population When driven at 200W on ballast type EUC 200V 01 and temperature conditions are fulfilled AN 2002 002 85 500h 50 2000h According to the light specification table see paragraph 4 5 2 When driven at 150W on ballast type EUC 200V 01 and temperature conditions are fulfilled AN 2002 002 85 500h 50 2500h According to the light specification table see paragraph 4 5 2 ...

Page 11: ...t maker must design a lamp house to keep glass pieces in the lamp house Visible arc instability has to be suppressed by set optics 5 ENVIRONMENTAL LAWS EU At end of service life UHP Lamps should be treated as chemical waste in view of mercury content and be disposed of in compliance with national regulations law USA To comply in accordance with the Law of Vermont that obliges the visible notificat...

Page 12: ...Chapter 1 6 System Block Diagram ...

Page 13: ...7 Chapter 1 Optics Conceptual Drawing ...

Page 14: ...chapter provides the equipment needed setup and upgrading procedure for Firmware upgrade Chapter 2 Setup Tool Equipment 1 Computer 2 USB Cable see right picture 3 Power Coard 1 Connect Download Cable to projector 2 Open burning programma DLP Composer Lite ...

Page 15: ... Menu button together and connect the power cord into the projector Than release these 2 bottoms 4 Click the Start Download button and then start to burning of program 5 Completion of Burning than remove Power Cord and Burning Cord ...

Page 16: ...sure to turn off the power computersystem and other attached devices then disconnect the power cablefrom the electronicallyoutlet Moreover when you disassemble the projector be sure to put the screws in a safe place and separate them according to grouping Tool Needed Chapter 3 Item PHOTO Long Nose Nipper Hex Sleeves 5mm Screw Bit 107 Screw Bit 101 Screw Bit 102 ...

Page 17: ...egin Before proceeding with the disassembly procedure make sure that you do the following 1 Turn off the power to the system and all peripherals 2 Unplug the AC adapter and all power and signal cables from the system 3 Wear Anti static wrist strap ...

Page 18: ...ws of Lamp Module 4 Grasp the lamp handle and pull out Lamp Module p s Related notice of replace lamp pls refer to the Lamp Specification section Disassemble Lamp Module Note Unplug all the cord before disaddembling the Projector 01635 366 2 01635 366 2 Lamp Cover Assembly LampAssembly ...

Page 19: ... screws of Back Cover Disassemble IO Cover Top Cover 1 Loosen the 2 screws of Top Cover 2 Lift up Top Cover directly Be careful there is a internal wire connect with the main board 01635 D360 00 2 01635 B730 00 2 01635 B730 00 2 P2038 1550 00 P2035 4510 99 82035 2510 00 2 ...

Page 20: ... Speaker 01635 362 2 02591 0014 00 02413 0016 00 1 Loosen the screws of Speaker 2 Life up Speaker 1 Loosen the 2 screws of Front Cover 2 Lift up Front Coverdirectly Be careful there are three internal wires connect with the main board 01635 B730 00 2 ...

Page 21: ...15 Chapter 3 Disassemble Front Fan 1 Lift up the Front f Fan Set from front cover directly ...

Page 22: ...Chapter 3 16 Disassemble Front IR Board IR Cover P3634 7650 00 P2034 4520 98 01635 3610 00 02595 0029 00 P2447 5100 ...

Page 23: ...17 Chapter 3 Disassemble Video IO 1 Loosen the screws of Back Cover 2 Loosen back cover 3 Remove the Video IO 01635 3610 00 2 ...

Page 24: ...sassemble Main Board 1 Loosen the four screws of Main Board 2 Unplug all wires on the board Main Board PIN location of connectors pls refer to Chapter 5 3 Remove Main Board 01635 3660 00 4 P3635 0560 00 01635 3660 00 ...

Page 25: ... of Ballast Module 4 Unplug all wires on Ballast Module Ballast Board PIN location of connectors pls refer to Chapter 5 5 Remove the Ballast Module Disassemble Ballast Module Back IR P4543 1016 01635 3610 00 2 01635 3660 00 2 Unplug from Power Module 2Pin Connector Unplug from Lamp Module Connector ...

Page 26: ...Chapter 3 20 Disassemble Optical Engine 1 Lossen the four screws of Optical Engine 2 Remove the Optical Engine 01635 A010 00 4 ...

Page 27: ...21 Chapter 3 Disassemble Back Cover 1 Loosen the screw of AC Inlet remove the ring 2 Remove the Back Cover 3 01635 7050 00 4 01635 A080 00 P5844 0007 ...

Page 28: ...Chapter 3 22 Disassemble Back IR Cover AC Outlet 1 Take out theAC Inlet 2 Take out the Back IR Cover 02595 0028 00 P2034 4530 98 P2034 4640 00 ...

Page 29: ...23 Chapter 3 Disassemble Power Module 1 Unplug the wire 2 Loosen the five screws of Power Module 3 Remove the Power Module 01635 3610 00 5 02595 0063 00 b c d e a ...

Page 30: ...Chapter 3 24 Disassemble Ground Plate Mylar 1 Lift up the Groung Plate 2 Then lift up the Mylar 2 P2035 0500 00 3 P2038 0520 00 ...

Page 31: ...4 040 P1638 105 Disassemble Heatsink DMD Board 1 Loosen the four screws of Heatsink 2 Tear off the EMI Pad 3 Remove the Heatsink Do not Suggest to tear off Thermal Pad and DMD Pad on Heatsink unless they are damaged 4 Lift up the DMD Board P3447 6000 P1635 6030 00 ...

Page 32: ...Chapter 3 26 DMD Assembly 02475 0003 10 P1636 701 right angle to right angle Disassemble DMD Assembly DMD 1 Lift up the DMDAssembly 2 Lift up the DMD 02093 0007 00 ...

Page 33: ...27 Chapter 3 Disassemble Thermal Board 1 Loosen the screw of Thermal Board 2 Remove the Thermal Borad 01635 3530 00 P2235 0000 00 ...

Page 34: ...3 0020 P0335 101 3 stick on top of joint P1638 102 and can not protrude screw the two this side screws first Disassemble Optical Engine Fan 1 Loosen the three screws of Fan 2 Remove the Optical Engine Fan 02394 0011 00 ...

Page 35: ...ription about maintaining the product Moreover you can get the appropriate operation to solve some complicated problems of component repairing and professional problems The Troubleshooing section focus on below items 1 Video Signal Troubleshooting 2 Operation Function Troubleshooing 3 Power Source Troubleshooting Chapter 4 ...

Page 36: ...urnon Source Check Cable Replace Cable Computer Mode Input Change to Computer Mode Change Main Board NG NG NG Video No Signal Check Source Turnon Source Check Cable Replace Cable Video Mode Input Change to Video Mode OK NG OK OK NG NG OK OK OK Change Main Board ...

Page 37: ...al Sensor Check LED indication Replace Fan OK NG OK OK OK NG NG NG Replace Main Board NG Check Main Board No Volume Check Speaker Connector Speaker Connector Become loose Check Speaker Replace Speaker Check Main Board Replace Main OK OK OK NG NG OK Replace Ballast NG Check Ballast Check Top cover s cable Replace cable or connect the cable back OK NG ...

Page 38: ...33 Chapter 4 Color Missing On Screen C W Cable Connector Check Cable Connector Check Cable Replace Cable Check Main Board Change Main Board OK NG OK OK OK NG NG Change Optical Engine ...

Page 39: ...ace Battery Check Remote Control Replace Remote Control Check IR Replace IR Main Board Fail OK NG OK OK NG NG Button Failure Check Button Replace Button Check Keypad Replace Keypad Replace Main Board OK OK NG NG Check Top cover s cable OK NG Replace cable or connect the cable back ...

Page 40: ...er Board Replace Main Board OK NG OK OK OK NG NG NG Replace Power Board NG OK Check Main Board Power Source Replace Standby Signal cable NG Fan failure After TurningOn Check Fan Connector Fan Connector Become loose Check Inner Wires Replace Inner Wires Check Fan R e p l ac e Fan Check Main Board Replace Main Board OK NG OK OK NG NG NG OK Replace Power Baord Replace Power Cord ...

Page 41: ...Chapter 4 36 Function Test and Alignment Equipment Needed Test Condition ...

Page 42: ...H 0 0 8 x 0 4 6 0 6 5 1 3 2 7 7 7 3 5 7 5 7 3 5 8 3 3 4 A G V S V H 0 0 6 x 0 0 8 6 5 1 5 3 0 6 9 7 3 2 7 1 8 4 5 7 9 6 4 5 8 7 3 5 A G X V H 8 6 7 x 4 2 0 1 0 6 4 8 4 0 7 5 6 5 5 7 0 6 0 8 4 6 5 8 3 8 6 A G X S V H 4 2 0 1 x 0 8 2 1 0 6 4 6 Test Display Modes and Patterns Compatible Modes ...

Page 43: ... n e r a e r e h t e r u s n e d n a 4 e r u g i F 4 p u k c e h c n o i t u l o s e R d n a k c a l B d r o W e t i h W e t i h w d n a k c a l b e h t t c e l e S 1 e h t e s U e l i f P M B d r o w d e t c e j o r p e h t t s u j d a o t r o t c e j o r p e z i s m u m i x a m e h t o t e g a m i e k a m d n a e z i s m u m i n i m d n a s i d r o w h c a e e r u s h t o b r e d n u e l b a h s...

Page 44: ...39 Chapter 4 Full Black Pattern Figure 3 Full White Pattern Figure 4 Gray Pattern Figure 7 Boundary Frame Figure 8 Black and White Word Pattern Figure 5 256RGB Pattern Figure 6 ...

Page 45: ...J5 DMD connector J7 Phone jack stereo R J8 Color wheel J9 Power in J15 Vidio S Video in JP1 USB JP3 CW index JP4 Firmware debug JP5 Standby run CON1 D SUB CON2 Video CON3 S video Connector Information Introduction This section provides each connector location on boards signal and function of each board They will be useful for your detecting the defective boards Chapter 5 ...

Page 46: ...he Locations of Connectors P I N Description 1 P W M 2 Control 3 G N D CN3 CN4 Cn5 FAN PIN Description 1 1 2 V _ S 1 2 FAN_FB3 3 G N D _ P W M 3 J1 Ballast Control P I N Description 1 IR 0 2 G N D 3 3 3 V CN1 CN7 IR ...

Page 47: ...1 2 Keypad_Menu 1 3 K e y p a d _ U p 1 4 K e y p a d _ D o w n 1 5 Keypad_Left 1 6 Keypad_Right 1 7 G N D 1 8 G N D 1 9 P o w e r _ L E D 2 0 L E D _ S Y S 2 2 1 L E D _ L a m p 1 2 2 L E D _ L a m p 2 2 3 P 3 P 3 V _ S T B Y _ P W R 2 4 P 3 P 3 V _ S T B Y _ P W R 2 5 P 3 P 3 V _ S T B Y _ P W R 2 6 Key_Source 2 7 IR 1 2 8 Key_Auto CN2 Keypad Control ...

Page 48: ... I N D e s c r i p t i o n 1 A G N D 2 A G N D 3 S V D O Y 4 S V D O C P I N D e s c r i p t i o n 1 C O M P V ID 2 A G N D 3 S V ID _ L U M 4 A G N D 5 S V ID _ C H R 6 G N D 7 3 3 V 8 3 3 V J3 J15 Video S Videop IN P I N D e s c r i p t i o n 1 3 3 V 2 S C L 3 S D A 4 G N D J2 Thermal ...

Page 49: ... IN C _ L 3 N C 4 A IN C _ R 5 N C CON1 D_SUB P I N Description 1 V Red 2 V Green 3 V Blue 4 NC 5 AGND 6 AGND 7 AGND 8 AGND 9 5V 10 DSUB_Detect 11 AGND 12 V S D A 13 H Sync 14 V Sync 15 V S C L P I N D e s c r i p t i o n 1 C W C T R 2 C W Y 3 3 C W Y 2 4 C W Y1 J8 Color Wheel ...

Page 50: ...G N D 7 1 3 5 V 8 G N D 9 1 2 5 V 1 0 G N D J9 Power Supply P I N D e s c r i p t i o n 1 N C 2 U S B D A T N 3 U S B D A T P 4 G N D 5 G N D 6 G N D PowerIn P I N D e s c r i p t i o n 1 3 3 V 2 3 3 V 3 3 3 V 4 G N D JP3 CW Index P I N D e s c r i p t i o n 1 S T B Y _ P W R 2 G N D JP3 CW Index ...

Page 51: ... 1 3 1 6 T R A C E P K T 1 2 1 7 T R A C E P K T 1 1 1 8 T R A C E P K T 1 0 1 9 T R A C E P K T 9 2 0 T R A C E P K T 8 2 1 T R A C E P K T 7 2 2 T R A C E P K T 6 2 3 T R A C E P K T 5 2 4 T R A C E P K T 4 2 5 T R A C E P K T 3 2 6 T R A C E P K T 2 2 7 T R A C E P K T 1 2 8 T R A C E P K T 0 2 9 T R A C E C L K 3 0 T R A C E S Y N C 3 1 P IP E S T A T 0 3 2 P IP E S T A T 1 3 3 P IP E S T A T ...

Page 52: ...47 Chapter 5 Power Board Summarize Connector Description CN101 A C Inout CN201 380V Output CN301 DC Output The Locations of Connectors P I N D e s c r i p t i o n 1 Line 2 N E U T R A L CN101 AC Inout ...

Page 53: ... e s c r i p t i o n 1 3 8 0 V 2 G N D CN201 380V Output P I N D e s c r i p t i o n 1 5 V _ S T B Y 2 G N D 3 G N D 4 5 V 5 5 V 6 G N D 7 1 3 5 V 8 G N D 9 1 2 5 V 1 0 G N D 11 G N D 1 2 S T B Y _ C T R L CN301 DC Output ...

Page 54: ... a g X 3 C o n n e c t i o n t o l a m p X2 SCI Flag X1 Power input P I N D e s c r i p t i o n 1 D C Input voltage 3 G N D The Locations of Connectors PIN Description 1 Flag TxD coll 2 Flag TxD emitter 3 Common anodes 4 S C I Sync cath 5 RxD cath X3 Connection to lamp P I N D e s c r i p t i o n 1 L A M P 4 L A M P ...

Page 55: ...ons a part number change is made it will not be noted on the printed Service Guide For Acer AUTHO RIZED SERVICE PROVIDERS Acer office may have a DIFFERENT part number code from those given in the FRU list of this printed Service Guide You MUST use the local FRU list pro vided by your regionalAcer office to order FRU parts for repair and service of customer machines NOTE To scrap or to return the d...

Page 56: ...a o B r e w o P 3 0 0 4 8 7 6 P 4 d r a o B D M D 0 0 0 6 7 4 4 3 P 5 d r a o B R I t n o r F 0 0 1 5 7 4 4 2 P 6 d r a o B R I k c a B 1 0 1 5 7 4 2 3 P 7 T E K C A R B R O S N E S 0 0 0 0 0 0 5 3 2 2 P 8 r e v o c p o T 4 0 0 0 4 8 7 6 P 9 r e v o c m o t t o B 5 0 0 0 4 8 7 6 P 0 1 r e v o c t n o r F 6 0 0 0 4 8 7 6 P FRU List ...

Page 57: ... O P S O I 0 0 0 5 5 1 8 3 0 2 P 4 1 e t a l P O I 9 9 0 1 5 4 5 3 0 2 P 5 1 r e v o C p m a L 4 0 0 1 4 4 3 6 P 6 1 t e k c o S n i p 3 0 2 D M D 0 1 3 0 0 0 5 7 4 2 0 7 1 e l u d o M p m a L 8 0 0 0 4 8 7 6 P 8 1 e n i g n E l a c i t p O 9 0 0 0 4 8 7 6 P 9 1 h c n i 5 5 0 D M D 0 0 7 0 0 0 3 9 0 2 0 0 2 t e S n a F t n o r F 6 0 0 1 5 4 7 6 P ...

Page 58: ... 2 k n i s t a e H D M D 0 0 0 3 0 6 5 3 6 1 P 5 2 E T A L P E D I S 0 0 0 2 5 0 5 3 0 2 P 6 2 r e v o C n e L 0 0 A 2 6 4 4 3 0 2 P 7 2 r e k a e p S 0 0 6 1 0 0 3 1 4 2 0 8 2 n i P 3 e r i W R I F o t B M 0 0 9 2 0 0 5 9 5 2 0 9 2 e l b a C C C F e r i W r e v o C p o T o t B M 0 0 4 1 0 0 1 9 5 2 0 0 3 t e l n I C A e r i W r e w o P o t t e l n I C A 0 0 8 2 0 0 5 9 5 2 0 ...

Page 59: ...2 0 0 5 9 5 2 0 2 3 n i P 5 e r i W t s a l l a B o t B M 0 0 0 3 0 0 5 9 5 2 0 3 3 n i P 2 e r i W r e w o P o t t s a l l a B 0 0 9 1 0 0 5 9 5 2 0 4 3 n i P 4 e r i W B M 0 0 8 1 0 0 5 9 5 2 0 5 3 n i P 2 0 1 n i P 2 1 e r i W r e w o P o t B M 0 0 3 6 0 0 5 9 5 2 0 6 3 7 3 8 3 9 3 0 4 ...

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